MAX6315
Open-Drain SOT µP Reset Circuit
Maxim Integrated | 2www.maximintegrated.com
Absolute Maximum Ratings
Electrical Characteristics
(V
CC
= +2.5V to +5.5V, T
A
= -40°C to +125°C, unless otherwise noted. Typical values are at T
A
= +25°C.)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Note 1: The MAX6315 monitors V
CC
through an internal factory-trimmed voltage-divider that programs the nominal reset threshold.
Factory-trimmed reset thresholds are available in 100mV increments from 2.5V to 5V (see the
Ordering Information
).
V
CC
........................................................................-0.3V to +6.0V
RESET....................................................................-0.3V to +6.0V
All Other Pins..............................................-0.3V to (V
CC
+ 0.3V)
Input Current (V
CC
).............................................................20mA
Output Current (RESET)......................................................20mA
Rate of Rise (V
CC
) ...........................................................100V/µs
Continuous Power Dissipation (T
A
= +70°C)
SOT143 (derate 4mW/°C above +70°C)........................320mW
Operating Temperature Range .........................-40°C to +125°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
MAX6315US_ _D2-T (-40°C to +85°C)
MAX6315US_ _D1-T (-40°C to +125°C)
MAX6315US_ _D2-T (-40°C to +125°C)
T
A
= +25°C
V
CC
> 1.2V, I
SINK
= 0.5mA
V
CC
= 3.6V, no load (-40°C to +85°C)
V
CC
= 5.5V, no load (-40°C to +85°C)
15
T
A
= -40°C to +85°C
V
TH
- 2.5% V
TH
+ 2.5%
16 48
20 28 40
0.8 2.4
V
CC
> V
TH
, RESET deasserted
V
TH
> 4.0V
V
CC
= falling at 1mV/µs
MAX6315US_ _D1-T (-40°C to +85°C)
V
CC
> 4.25V, I
SINK
= 3.2mA
CONDITIONS
V
CC
> 2.5V, I
SINK
= 1.2mA
V
CC
> 1.0V, I
SINK
= 80µA
0.3 x V
CC
2.4
0.7 x V
CC
0.3
0.3
0.3
V
12
T
A
= -40°C to +125°C
410
MAX6315US_ _D4-T (-40°C to +85°C)
MAX6315US_ _D3-T (-40°C to +125°C)
V
CC
= 3.6V, no load (-40°C to +125°C)
V
TH
- 3.5% V
TH
+ 3.5%
MAX6315US_ _D4-T (-40°C to +125°C) 896 2688
1120 1570 2240
112 336
MAX6315US_ _D3-T (-40°C to +85°C) 140 200 280
µA1
RESET Output Leakage Current
V
0.4
V
OL
RESET Output Voltage
kΩ32 63 100
MR Pullup Resistance
V
TH
- 1.8% V
TH
V
TH
+ 1.8%
V
TH
Reset Threshold (Note 1)
µA
512
I
CC
V1.0 5.5V
CC
Operating Voltage Range
V
CC
Supply Current
ns500
MR to Reset Delay
ns100
MR Glitch Rejection
µs1
MR Minimum Input Pulse
V
0.8
V
IL
MR Input Threshold
ppm/°C60ΔV
TH
/°CReset Threshold Tempco
µs35V
CC
to Reset Delay
ms
1 1.4 2
t
RP
Reset Timeout Period
UNITSMIN TYP MAXSYMBOLPARAMETER
V
IL
V
IH
V
IH
V
CC
= 5.5V, no load (-40°C to +125°C)
T
A
= -40°C to +85°C
V
TH
< 4.0V
MANUAL RESET INPUT